82956691890 has 80 divisors (see below), whose sum is σ = 224764372800. Its totient is φ = 21952887840.

The previous prime is 82956691879. The next prime is 82956691891. The reversal of 82956691890 is 9819665928.

It is not an unprimeable number, because it can be changed into a prime (82956691891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 284790 + ... + 497009.

It is an arithmetic number, because the mean of its divisors is an integer number (2809554660).

Almost surely, 2^82956691890 is an apocalyptic number.

82956691890 is an abundant number, since it is smaller than the sum of its proper divisors (141807680910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82956691890 is a wasteful number, since it uses less digits than its factorization.

82956691890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781949 (or 781940 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

The spelling of 82956691890 in words is "eighty-two billion, nine hundred fifty-six million, six hundred ninety-one thousand, eight hundred ninety".